Jacilyn
Jacilyn was last recorded in 2021, when 5 babies were given it; 386 Americans have been recorded with it between 1974 and 2021 (Social Security Administration, published May 2026).
Girls and boys together; gaps are years SSA did not record (fewer than 5 births).
Births of Jacilyn by year: SSA national baby-name file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
How popular is Jacilyn?
Unranked in 2025
Its last girls’ rank on record is #16,224, in 2021; SSA lists a name only in years with 5 or more births.
22 babies in 1984, the peak
Jacilyn peaked in 1984, when 22 girls were given it, #3,646 among girls’ names. It was not recorded in 2025.
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2021 | 5 | #16,224 | 3.0 |
| 2013 | 7 | #13,733 | 4.0 |
| 2011 | 6 | #15,568 | 3.4 |
| 2010 | 6 | #15,721 | 3.4 |
| 2009 | 7 | #14,263 | 3.8 |
| 2008 | 5 | #18,625 | 2.6 |
| 2007 | 9 | #12,008 | 4.7 |
| 2005 | 8 | #12,265 | 4.3 |
| 2004 | 10 | #10,191 | 5.4 |
| 2003 | 7 | #12,943 | 3.8 |
Every recorded year (37)
| Year | Births | Rank | Per million girls |
|---|---|---|---|
| 2002 | 11 | #9,077 | 6.1 |
| 2001 | 10 | #9,650 | 5.6 |
| 2000 | 5 | #15,983 | 2.8 |
| 1999 | 6 | #13,297 | 3.4 |
| 1998 | 14 | #6,847 | 7.9 |
| 1997 | 9 | #9,318 | 5.2 |
| 1996 | 10 | #8,395 | 5.7 |
| 1995 | 15 | #6,070 | 8.5 |
| 1994 | 10 | #8,363 | 5.6 |
| 1993 | 9 | #8,999 | 5.0 |
| 1992 | 14 | #6,423 | 7.6 |
| 1991 | 9 | #8,865 | 4.8 |
| 1990 | 12 | #7,034 | 6.3 |
| 1989 | 17 | #5,128 | 9.2 |
| 1988 | 12 | #6,410 | 6.7 |
| 1987 | 13 | #5,707 | 7.5 |
| 1986 | 17 | #4,606 | 9.9 |
| 1985 | 17 | #4,519 | 9.9 |
| 1984 | 22 | #3,646 | 13.1 |
| 1983 | 11 | #5,949 | 6.6 |
| 1982 | 15 | #4,785 | 8.9 |
| 1981 | 12 | #5,682 | 7.2 |
| 1980 | 14 | #5,069 | 8.4 |
| 1979 | 10 | #6,365 | 6.2 |
| 1978 | 7 | #7,934 | 4.6 |
| 1977 | 10 | #6,037 | 6.5 |
| 1974 | 5 | #9,258 | 3.4 |
Ranks and shares: girls’ names in each year’s SSA file; share of all girls SSA recorded that year.
Is Jacilyn a boy’s or a girl’s name?
Jacilyn has been recorded only for girls: SSA lists no boys with the name in 37 years of records (it lists a name only in years with 5 or more babies of a sex).
Girls and boys named Jacilyn: the SSA national file counts each sex separately.
How many people are named Jacilyn, and how old are they?
An estimated 376 Americans named Jacilyn and born in the U.S. are alive in 2026 (98% of everyone recorded); the median is 35 years old and half are between 26 and 42. An estimate from SSA’s births and life tables, not a count.
The 2020 Census counted 379 people named Jacilyn (379 women and girls, 0 men and boys). SSA’s births carried forward to Census day, April 1, 2020, predict 374 born in the U.S. The Census count is 1% above that prediction.
Living estimate: SSA births carried forward with the survival rates in SSA’s cohort life tables (2024 Trustees Report) for each birth year and sex. How the estimate is made. Count: Census Bureau, first names in the 2020 Census (released April 14, 2026; names reported 100 or more times, with the Bureau’s disclosure-avoidance adjustment).
Names spelled alike
Of these 8 names spelled alike, given to 84,373 babies since 1880, Jacilyn is the eighth most given (<1% of them). In 2025 none of their 209 babies recorded by SSA was a Jacilyn (SSA lists a name only with 5 or more babies of one sex).
Spelled alike: names in the SSA national file with the same pattern of letters and sounds and at most two letters apart, and Wiktionary’s listed forms; births since 1880 and in 2025, and each name’s peak year, from the SSA national file, published May 8, 2026. Some are separate names, not spellings of one.
Names that rose and fell in the same decades as Jacilyn
Names whose births rose and fell across the same decades, measured on each decade’s share of births.
Similar histories: each decade’s share of births, from the SSA national file, 1880-2025, published May 8, 2026. SSA’s notes on the data.
More about Jacilyn and names like it
- Compare Jacilyn and JaclynBirths, ranks, peak and the living estimate side by side.
- The most given names of the 1980sJacilyn peaked in 1984.
- The top names of 1984The year the most babies were named Jacilyn.
- The names of the MillennialsMost people named Jacilyn alive today were born 1981-1996.
- Names starting with JMost given first.